package com.heima.apis.article.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.apis.article.mapper.ApArticleConfigMapper;
import com.heima.apis.article.mapper.ApArticleContentMapper;
import com.heima.apis.article.mapper.ApArticleMapper;
import com.heima.apis.article.service.ApArticleService;
import com.heima.apis.article.service.ArticleFreemarkerService;
import com.heima.common.constants.ArticleConstants;
import com.heima.model.article.dtos.ArticleDto;
import com.heima.model.article.dtos.ArticleHomeDto;
import com.heima.model.article.pojos.ApArticle;
import com.heima.model.article.pojos.ApArticleConfig;
import com.heima.model.article.pojos.ApArticleContent;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;

@Service
@Transactional
@Slf4j
public class ApArticleServiceImpl extends ServiceImpl<ApArticleMapper, ApArticle> implements ApArticleService {
    private final static short MAX_PAGE_SIZE=50;
    @Autowired
    private ApArticleMapper apArticleMapper;
    /**
     * 加载文章列表
     *
     * @param dto
     * @param type 1加载更多  2加载最新
     * @return
     */
    @Override
    public ResponseResult load(ArticleHomeDto dto, Short type) {
        //校验参数
        //分页条数校验
        Integer size = dto.getSize();
        if(size==null||size==0){
            size = 10;
        }
        //分页的值不超过50
        size=Math.max(size,MAX_PAGE_SIZE);
        dto.setSize(size);
        //校验参数
        if(!type.equals(ArticleConstants.LOADTYPE_LOAD_MORE)&&!type.equals(ArticleConstants.LOADTYPE_LOAD_NEW)){
            type=ArticleConstants.LOADTYPE_LOAD_MORE;
        }
        //频道参数校验
        if(StringUtils.isBlank(dto.getTag())){
            dto.setTag(ArticleConstants.DEFAULT_TAG);
        }

        //时间校验
        if(dto.getMaxBehotTime()==null) {
            dto.setMaxBehotTime(new Date());
        }
        if(dto.getMinBehotTime()==null) {
            dto.setMinBehotTime(new Date());
        }
        //查询数据
        List<ApArticle> articleList = apArticleMapper.loadArticleList(dto, type);
        return ResponseResult.okResult(articleList);
    }


    /**
     * 保存app端相关文档
     *
     * @param dto
     * @return
     */
    @Autowired
    private ApArticleConfigMapper apArticleConfigMapper;
    @Autowired
    private ApArticleContentMapper apArticleContentMapper;
    @Autowired
    private ArticleFreemarkerService articleFreemarkerService;
    @Override
    public ResponseResult saveArticle(ArticleDto dto) {
//        1. 检查参数
        if(dto==null){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }
        ApArticle apArticle = new ApArticle();
        BeanUtils.copyProperties(dto,apArticle);
//        2. 判断是否存在id
        if(dto.getId()==null){
//            2.1不存在id 保存 文章 文章配置 文章内容
        //保存文章内容
            save(apArticle);
//            保存配置
            ApArticleConfig apArticleConfig = new ApArticleConfig(apArticle.getId());
            apArticleConfigMapper.insert(apArticleConfig);

//            保存文章内容
            ApArticleContent apArticleContent = new ApArticleContent();
            apArticleContent.setArticleId(apArticle.getId());
            apArticleContent.setContent(dto.getContent());
            apArticleContentMapper.insert(apArticleContent);

        }else{
//            2.2 存在id 修改 文章 文章内容
//            修改文章
            updateById(apArticle);
//            修改文章内容
            ApArticleContent apArticleContent = apArticleContentMapper.selectOne(Wrappers.<ApArticleContent>lambdaQuery().eq(ApArticleContent::getArticleId, dto.getId()));
            apArticleContent.setContent(dto.getContent());
            apArticleContentMapper.updateById(apArticleContent);
        }

        //异步调用 生成静态文件上传到minio中
        articleFreemarkerService.buildArticleToMinIO(apArticle,dto.getContent());

//        3. 返回结果

        return ResponseResult.okResult(apArticle.getId());
    }
}
